var
a, n: integer;
begin
readln(n);
while (n > 0) do
begin
a := n mod 10;
n := n div 10;
if (a mod 2 = 0) then
write(a, ' ');
end;
end.
var
a, n: integer;
begin
readln(n);
while (n > 0) do
begin
a := n mod 10;
n := n div 10;
if (a mod 2 = 0) then
write(a, ' ');
end;
end.